3D Fit Print upper design uses areas of stretch and support to create a snug, comfortable fit that moves with you. BioMoGo DNA midsole adapts to your stride for custom cushioning with every step. Omega Flex Grooves allow a full range of motion and smooth transition from heelstrike to toe-off. Lightweight Guide Rails encourage a more natural stride by limiting pronation. Split-toe outsole design increases flexibility and allows a more powerful toe-off. Blown rubber outsole for lightweight traction on any surface. Wt. 7.5 oz.